Stock lifting grab



Sept. 19, 1944. J. BRESLAV STOCK LIFTINQ GRAB Filed May 25, 1943INVVENTOR Jack Breslazr BY W ATTORNEY Patented Sept. 19, 1944 UNITEDSTATES PATENT OFFICE STOCK LIFTING GRAB I J -ack Breslav, New Haven,Conn. I Application May 25-, 1943, Serial No. 488,465

strains. (01. 294-61;

This invention relates to stock lifting grabs and more particularly toimprovements in a form of grab which'is especially adapted to engage andlift a load of a plurality of bars of metaL'pipe, etc., for transferfrom one location'to another.

The stock lifting grab of this invention isparticularly adapted to bemoved sidewise under a load of bars, spaced from the floor or otherloads on suitable supports, and then raised to engage the load at aplurality of points along its length. The load in some instancescomprises'a plurality of long bars, which, due to their length, are notparticularly rigid and require a substantially rigid support along theirlength. In many instances the such bars range up to forth feet inlength. Stock lifting grabs for engaging and lifting bars of long lengthmust b substantially rigid in construction, have their entire structurebalanced, and be of sufficient strength, without requiring an excess ofmaterial in its structure whereby it will be of excessive weight,inconvenient to manipulate, and costly to manufacture.

One object of this invention is to provide a stock lifting grab adaptedto engage and lift a load of bars which will be of such novelconstruction that it will be of s'u'iiicie'nt stiffness and strength forthe purpose of its use while being constructed of a minimum amount ofmaterial and of a minimum weight. I

Another object is to provide in a stock lifting grab of the abovenature, means to be disposed in under a load, to be lifted, to engageand lift the same, and means to counterweight the load engaging means. V

A further object is to provide in a stock lifting grab of the abovenature, counterweightingmeans for the load engaging means, and meansftostiffen the entire structure so that a minimum amount of material may beused in the entir structure.

A still further object of this invention is to provide an improved formof stock lifting grab which will be relatively simple in construction,inexpensive to manufacture, readily manipulated, compact, andveryefficient and durable in use.

With these and other objects in view, which will appear as thedescription proceeds, there has been illustrated in the accompanyingdrawing a form in which the features and principles of this inventionmay be conveniently embodied in. practice, it being understood thatvarious changes may be made within the scope. of what is claimed,Lvithout departing from the spirit of the invenion.

In the drawing: a

Figure 1 is a'top plan view of a stock lifting grab embodying the.features and principles of this invention; I

' Figure 2 is a side elevational view of the grab shown in Figure 1;

' Figure Bis an enlarged sectional view of the grab taken on the line3--3 of Figure 2;

Figure 4 is an enlarged sectional view of the grab taken on the line 44of Figure 2; and

Figure 5 is an end view of a somewhat modified form or grab.

Referring now to the drawing wherein like reference numerals designatelike parts throughout the several views, the grab selected to illustratethe features and principles of this invention comprises a main carryingbeam ll, herein shown built up of oppositelydirec'ted channels l2 and I3'spaced apart at intervals along their length by short bars l4 and J5and short lengths of smaller channels it, the smaller channels 15 beingset in between the channels I2 and; I 3 and bolted there to, as shown.In this instance a pair of spaced apart loops I and I8 are secured tothe beam H, being set between the spacer bars 14 and I5 and weldedthereto. The loops l1 and I8 are pro- 7 vided for the purpose ofreceiving connections,

such as hooks, "depending from a suitable lifting tackle, such as ahoist,'or'crane (not shown) by which the grab and'the loadeng'agedthereby may be lifted and transferred to the desired location. The loadI9 is indicated by dotted lines in the drawing, and may consist of aplurality of cylindrical rods, fiat bars, pipes, or tubes, arranged in apile and'supported from the floor on other loads, or suitable supports,such as horses. A plurality of bent legs 2| are secured at their upperends' to the beam H, the said upper ends of the legs in this instancebeing the smaller channels [6; Extending outwardly and downwardly at anangle from the channels I 6 is a length of channel 22 and from the lowerend of this angular extending length of channel 22 is a downwardly 'andvertically extending length of channel 23. From the lower end of thelength of channel 23 a horizontally disposed length of channel extends,in under the main beam II, with its center substantially in verticalalignment with the vertical center of the main beam l I. A short pieceof angle iron 25 is secured, in a vertical position to the outer end ofthe horizontally disposed length of channel 24 to prevent the parts,constituting the load [9, from sliding oi'l the load supportingarm,constituted by the horizontally disposed length of channel 24.

At the jointure between the lengths of channels l6 and 22 a reinforcingplate 26 is provided which is preferably welded to each channel.Likewise at the jointure between the lengths of channels 22, 23 and 23,24 reinforcing plates 21 and 28, respectively, are provided. lAnelongated bent bar 30 extends the length of the grab and is secured tothe bent legs 2|, as by welding, at the outer side of the jointurebetween the channel lengths 22 and 23. Y v

In order to counterbalance the difference in weight between theangularly disposed channel length 22 and the vertically disposed channellength 23, and the short angle iron piece 25, a socalled outriggerdevice is provided which is herein shown as being constituted by alength of channel 29. tend the entire length of the grab and is securedto the main beam spaced from the beam l at the side thereof opposite tothe side from which the bent legs 2| extend, by cross-bars 3|, which aresecured as by welding to the channel 29 and the main beam I. The numberof cross-bars 3| in this instance equals the number of legs 2| and theyare spaced apart the same amount a the legs 2| are spaced along the mainsupporting beam Intermediate adjacent cross-bars 2| and extending fromthe channel I2 of the main beam to the channel 29 is a bar 32 which issecured to the main beam I and to the channel 29 as by welding.

The channel 29 is further secured to the main beam H by a trussconstruction partly constituted by lengths of bars, in this instanceT-bars 33, diagonally extending from the top of the channel 29 to thetop of the beam between alternate pairs of cross-bars 3|, and from thetop of the beam to the top of the channel 29 between the other pairs ofcross-bars 3|. Th purpose of the truss construction, partly constitutedby the diagonally extending T-bars 33 and partly by the cross-bar 3|, istwo-fold, first to efficiently laterally stiffen the long main beam H,which is of minimum weight, but of sufflcient strength, to carry theload resting on the bent legs 2|, and secondly to support the channel29. in proper spaced relation from the beam II to efliclentlycounterbalance the weight of the offset portion of the legs 2|.Beinglocated at the top of the grab this counterbalancing and/orstiffening means, or channel 29, in no manner interferes with the propermanipulation of the grab for th purpose for whichit was intended. 1

The modified form of grab illustrated in Figure comprises a beam 40having one or more lifting loops 4| extending-upwardly therefrom. Loadsupporting legs 42, each comprising an outwardly and downwardlyextending portion 43-, and a horizontally extendingload carrying portion44 the center of the latter being vertically in align? ment with thecenter of the beam 40. Another horizontally extending portion 45 0f eachof the legs 42 extends across the beam 40 and is suitably securedthereto. The portion 45 of each leg 42 extends beyond the beam 42 in adirection opposite to the direction the portion 43 extends from thebeam, to form a counterbalance for the respective leg 42. A member 41is'secured'to the free end of: the portion 45 to prevent the loadslippin from the portion 45.

By the use'of the above disclosed arrangement of elements ina stocklifting grab it is possible to have the bottom member, or loadsupporting channel 24, of the legs 2 I, extend an equal amount each sideof the vertical center line of the'main beam I. By the arrangementdisclosed it is also possible to use a minimum amount of counterweightand to take advantage of the full width of the bottom member, or loadcarrying channel 24, of the legs 2|, no counterbalancing devic being.required to be disposed on these legs, as is often done in other grabdesigns. By the novel design of grab disclosed herein a minimum amountof material, both in weight and size, is required, as th main beam canbe of relatively slender construction, while being of suflicientstrength to carry the load, due to the reinforcing action of the abovedisclosed truss construction.

It will be understood that the novel features and principle of thisinvention may be embodied The channel 29 substantially ex- 'the spiritand essential attributes thereof, and it is therefore desired that thpresent embodiment be considered in all respects as illustrative and notrestrictive, reference being had to the claims rather than to theforegoing description to indicate the scope of the invention.

Having thus fully disclosed the invention, what is claimed as new andfor which it is desired to secure Letters Patent, is: I

1. In a stock lifting grab for lifting and trans ferring loads, a mainload carrying beam, a plurality of load engaging horizontally disposedmembers spaced apart below and along said main beam, means extendingoutwardly to one side of said main beam and depending from said beam toconnect it with each of said members, a member extending along andsecured to said beam and being spaced from the same at the side thereofopposite that side from which said connecting means extends, tOlcounterbalance the latter, and means to connect said counterbalancingmember to said main beam to form a truss construction to laterallystiffen said main beam.

2. In a stock lifting grab for lifting and transferring loads, a mainload carrying beam, a plurality of load engaging horizontally disposedmembers spaced apart below and along said main beam, means extendingoutwardly to one side of said main beam and depending from said beam toconnect it with each of said members, and a truss construction,including a member extending along and spaced from said main beam at theside thereof opposite that side from which said connecting meansextends, to counterbalance said connecting means and to laterallystiffen said main beam.

3. In a stock lifting grab for engaging and lifting stock, relativelylong in length, a main carrying beam, a plurality of horizontallydisposed stock engaging members disposed beow and spaced apart along thelength of said main beam, means extending outwardly from one side ofsaid main beam and depending therefrom to connect it with each of saidmembers, a second beam extending along and disposed spaced from theother side of the main beam, and common means to connect said secondbeam and cooperating therewith to laterally stiffen said main beam.

4. In a stock lifting grab for engaging and lifting stock, relativelylong in length, a main beam, a plurality of horizontally disposed stockengaging members disposed below and spaced apart along the length ofsaid main beam, means extending outwardly from one side of said mainbeam and depending therefrom to connect it witheach of said members, asecond beam extending along and disposed from the other side of saidmain beam to counterbalance said outwardly extending means, and in thesame horizontal plane as said main beam, and common means to connectsaid second beam with, and to laterally stifien, said main beam.

5. In a stock lifting grab in accordance with claim 3 and wherein thecommon means to connect the second beam and cooperating therewith tolaterally stiffen the main beam includes spaced apart cross-barsconnected to and extending from the main beam to the second beam.

6. In a stock lifting grab in accordance with claim 4 and wherein thecommon means to connect the second beam with, and to laterally stiffen,the main beam includes a plurality of diagonal bars alternatelyextending from one beam to the other.

7. In a stock lifting grab for engaging and lifting stock, relativelylong in length, a, main beam, a plurality of horizontaly disposed stockengaging members disposed below and spaced apart along the length ofsaid main beam, means extending outwardly from one side of said mainbeam and depending therefrom to connect it witheach of said members,loop means provided on said main beam by which to support it from mentwith the center of said main beam, a second beam extending along themain beam and spaced from the other side thereof and in the samehorizontal plane as said main beam, and means to connect said secondbeam with said main beam including cross-bars extending from the mainbeam to the second beam and diagonal bars alternately extending from onecross-bar to the other to support the second in spaced relation from themain beam and to stiffen the main beam.

8. In a stock lifting grab for engaging and lifting stock, relativelylong in length, a main carrying beam, a plurality of horizontallydisposed stock engaging members disposed below and spaced apart alongthe length of said main beam, means extending outwardly from one side ofsaid main beam and depending therefrom to connect it with each of saidmembers, a second beam extending along the entire length and. disposedspaced from the other side of the main beam, spaced apart cross-barsconnected to and extending from the main beam to the second beam, anddiagonal bars alternately extending from one cross-bar to the other andbetween said beams.

JACK BRESLAV.

